XFIT BAND FITNESS TRACKER Capture the total amount of calories burned in 24 hours, your steps taken, the and distance traveled Wirelessly syncs date to app via Bluetooth and is compatible with Samsung, Google Android, and iOS devices (like the iPhone) Wear during sleep so app can monitor your sleep patterns and improve your sleep hygiene One size fits all (adjustable bands) - Bonus: Black Band Included Download the app through the Apple store "Bluetooth Health Watch", on the Google Play store "Xtreme Xfit" or "Bluetooth Health Watch"